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Building Enclosure Council of Iowa An interdisciplinary forum for the construction industry to address building enclosures and related building science Advancing HighPerforming Building Enclosures Sharing knowledge resources and experiences Latest Events BECIowa Symposium 2025 BECIowa May Meeting BEC Brew Summer Social About BECIowa Learn more about the organization and meet the Board of Directors Become a Member Join or renew your membership today. Sponsorship Become an annual sponsor. About BECIowa BECIowa is an interdisciplinary network of affiliated architects engineers consultants manufacturers contractors developers owners facility managers educators and other interested individuals. It is a forum for the construction industry by which all those with an interest in the enclosure envelope of commercial institutional and residential structures and the related building science can discuss learn about and address the common and local issues and science relating to the building enclosure the exterior systems of buildings that play a critical role in building performance energy efficiency and occupant health comfort and safety.